2020 TOYOTA PRIUS PRIME brake

771What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47C77U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(P. 336)
●Is the shift position in P? ( P. 343)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 291)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(P. 700)
●Is the 12-volt battery discharged? ( P. 703)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat canno t be oper-
ated if the window lock switch is pressed. ( P. 312)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. ( P. 338)
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

772What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47C77U_(U)
●The seat belt reminder light is flashing
Are the driver and all the passengers wearing the seat belts? (P. 667)
●The parking brake indicator is on
Is the parking brake released? (P. 349)
Depending on the situation, other types of warning buzzer may a lso sound.
( P. 662, 672)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 672)
●When a warning light turns on or a warning message is displayed , refer to
P. 662, 672.
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
A warning light turns on or a warning message is displayed

774Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Alphabetical index
A/C .................................... 500, 511Air conditioning eco
mode .......................... 503, 514
Air conditioning filter ............. 628
Automatic air conditioning system .... 500, 511
Eco score (A/C score)........... 241
Humidity sensor ............ 510, 521
Remote Air Conditioning System ............................... 522
S-FLOW mode .............. 501, 513
ABS (Anti-lock Brake System) .................................. 489 Function ................................ 489
Warning light ......................... 663
Air conditioning filter .............. 628
Air conditioning system ............................ 500, 511 Air conditioning eco mode .......................... 503, 514
Air conditioning filter ............. 628
Automatic air conditioning system .... 500, 511
Eco score (A/C score)........... 241
Humidity sensor ............ 510, 521
Remote Air Conditioning System ............................... 522
S-FLOW mode .............. 501, 513
Air intake vent ............................ 99 Cleaning................................ 570 Airbags ....................................... 36
Airbag operating conditions .... 44
Airbag precaut ions for your
child ...................................... 40
Airbag warning light .............. 663
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 45
Curtain shield airbag precautions........................... 42
Front passenger occupant
classification syst em ............ 50
General airbag precautions .... 39
Locations of airbags ............... 36
Modification and disposal of airbags ................................. 43
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 41
Side and curtain shield airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 42
SRS airbag instructions for Canadian owners ............... 757
SRS airbags ........................... 36
Anchor brackets ........................ 73
Antenna Smart key system ................. 290
Anti-lock brake system (ABS) ...................................... 489 Function ................................ 489
Warning light......................... 663
A

775Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Approach warning ................... 413
Armrest ..................................... 553
Assist grips .............................. 554
Audio input
*
Audio system*
Automatic air conditioning system ..... 500, 511 Air conditioning eco
mode .......................... 503, 514
Air conditioning filter ............. 628
Automatic air conditioning system .... 500, 511
Eco score (A/C score)........... 241
Humidity sensor ............ 510, 521
Remote Air Conditioning System ............................... 522
S-FLOW mode .............. 501, 513
Automatic door locking and unlocking systems ........ 282
Automatic High Beam ............. 355
Automatic light control
system .................................... 353
AUX port
*
Auxiliary boxes ........................ 535
Back door ................................. 285
Back-up light ............................ 643
Replacing light bulbs............. 644
Wattage ................................ 726
Battery (12-volt battery) .......... 595 Battery checking ................... 595
Exchanging ........................... 706
If the 12-volt battery is discharged .......................... 703
Preparing and checking
before winter....................... 495
Replacing .............................. 706
Warning light ......................... 662 Battery (traction battery) .......... 98
Air intake vent ......................... 99
Charging ............................... 110
Location .................................. 98
Specification ......................... 721
Status indicator ..................... 112
Blind Spot Monitor (BSM) ....... 421 Blind Spot Monitor function... 425
Rear Cross Traffic Alert
function............................... 428
Bluetooth
®*
Bottle holders .......................... 534
Brake Fluid ...................................... 725
Parking brake ....................... 349
Regenerative braking ............. 94
Warning light......................... 662
Brake assist ............................. 489
Brake Override System ........... 320
Break-in tips............................. 321
Brightness control Instrument cluster light control ................................ 194
BSM (Blind Spot Monitor) ....... 421 Blind Spot Monitor function... 425
Rear Cross Traffic Alert function............................... 428
Care .................................. 564, 569 Aluminum wheels ................. 565
Camera sensor ..................... 377
Exterior ................................. 564
Interior .................................. 569
Radar sensor ........................ 376
Seat belts.............................. 572
Water-repellent coating ........ 565
B
C
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

777Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Clock ......................................... 192Adjustment ............................ 197
Coat hooks ............................... 553
Combination meter .................. 192 Clock adjustment .................. 197
Main display .......................... 209
Multi-information display ....... 218
Warning lights and
indicators ............................ 201
Condenser ................................ 594
Console box ............................. 532
Consumption screen ....... 263, 269
Coolant ..................................... 592 Capacity ................................ 723
Checking ............................... 592
Preparing and checking before winter....................... 495
Cooling system ........................ 592 Engine overheating ............... 709
Hybrid system overheating ... 711
Cruise control Dynamic radar cruise control with full-speed range .......... 403
Cup holders.............................. 533
Curtain shield airbags ............... 36
Customizable features ............ 741
Daytime running light system .................................... 353
Deck board ............................... 536
Defogger Outside rear view
mirrors ........................ 504, 515
Rear window ................. 504, 515
Windshield .................... 504, 514 Dimension ................................ 718
Dinghy towing.......................... 335
Display
BSM (Blind Spot Monitor) ..... 421
Drive information .................. 220
Dynamic radar cruise control with full-speed range .......... 403
Energy monitor ..... 221, 260, 266
Head-up display.................... 251
Intuitive parking assist .......... 434
LDA (Lane Departure Alert
with steering control) .......... 397
Main display.......................... 209
Multi-information display ....... 218
Parking Support Brake function............................... 448
Pre-collision warning ............ 381
S-APGS (Simple Advanced
Parking Guidance
System) .............................. 459
Warning messages ............... 672
Do-it-yourself maintenance .... 582
Door courtesy lights ............... 528 Location ................................ 528
Wattage ................................ 726
Doors ................................ 279, 285 Automatic door locking
and unlocking system......... 282
Back door ............................. 285
Door glasses......................... 312
Door lock .............................. 279
Open door warning buzzer ... 283
Open door warning light ....... 664
Outside rear view mirrors ..... 310
Rear door child-protectors .... 282
Side doors ............................ 279
Side windows........................ 312
D
*: Refer to “MULTIMEDIA OWNER’S MANUAL”.

778Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Drive information ..................... 220
Drive-Start Control .................. 320
Driver’s seat belt reminder light......................................... 664
Driving ...................................... 318
Break-in tips .......................... 321
Correct driving posture ........... 28
Driving in the rain .................. 319
Driving mode select switch ... 419
Plug-in hybrid vehicle driving tips ...................................... 105
Procedures ........................... 318
Winter drive tips .................... 495
Dynamic radar cruise control
with full-speed range ............ 403
ECB (Electronically Controlled Brake System) .... 489
Eco drive mode ........................ 419
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................................... 86
Location .................................. 86
Specification ......................... 721
Electric Power Steering (EPS)....................................... 490
Function ................................ 490
Warning light ......................... 663
Electronic key .......................... 274
Battery-saving function ......... 292
If the electronic key does not operate properly ........... 699
Replacing the battery ............ 635 Electronically Controlled
Brake System (ECB) ............. 489
Emergency, in case of If a warning buzzer sounds... 662
If a warning light turns on ..... 662
If a warning message is displayed ............................ 672
If the 12-volt battery is
discharged.......................... 703
If the electronic key does not operate properly ................. 699
If the hybrid system will not start .................................... 697
If the vehicle becomes
stuck ................................... 714
If the vehicle is trapped in rising water ......................... 654
If you have a flat tire ............. 680
If you lose your keys ..... 275, 278
If you think something is wrong .............................. 661
If your vehicle has to be stopped in an emergency ... 653
If your vehicle needs to be towed.................................. 655
If your vehicle overheats....... 709
Emergency flashers ................ 652
Emergency tire puncture
repair kit ................................. 680
Energy monitor ........ 221, 260, 266
E

779Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
EngineAccessory mode ................... 338
Compartment ........................ 588
Engine switch........................ 336
Exhaust gas precautions ........ 56
Hood ..................................... 585
How to start the hybrid system ......... ....................... 336
Identification number ............ 720
If the hybrid system will not start .................................... 697
If your vehicle has to be stopped in an emergency ... 653
Ignition switch (power
switch) ................................ 336
Overheating .......................... 709
Power switch......................... 336
Engine coolant ......................... 592 Capacity ................................ 723
Checking ............................... 592
Preparing and checking before winter....................... 495
Engine oil ................................. 589
Capacity ................................ 722
Checking ............................... 589
Oil pressure warning light ..... 662
Preparing and checking before winter....................... 495
Engine switch (power switch) .................................... 336
Auto power off function ......... 338
Changing the power switch modes................................. 338
If your vehicle has to be stopped in an emergency ... 653
Starting the hybrid system .... 336 EPS (Electronic Power
Steering) ................................ 490
Function ................................ 490
Warning light......................... 663
EV auto mode ............................ 87
EV driving range ...................... 108
EV mode ..................................... 87
EV/HV mode selection
switch ....................................... 90
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 56
Flat tire ..................................... 680
Floor mats .................................. 26
Fluid Brake .................................... 725
Transmission ........................ 724
Washer ................................. 600
Fog lights ................................. 360
Replacing light bulbs ............ 648
Switch ................................... 360
Footwell lights ......................... 528
Front doors .............................. 279
Front fog lights ........................ 360
Replacing light bulbs ............ 648
Switch ................................... 360
Front passenger occupant classification system .............. 50
Front passenger’s seat
belt reminder light................. 664
F

781Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Hybrid battery (traction battery) ..................................... 98
Air intake vent ......................... 99
Charging ............................... 110
Location .................................. 98
Specification ......................... 721
Status indicator ..................... 112
Hybrid battery (traction
battery) air intake vent ............ 99 Cleaning................................ 570
Hybrid system ............................ 86
Brake Override System......... 320
Consumption screen................. 231, 263, 269
Drive-Start Control ................ 320
Emergency shut off system .... 99
Energy monitor ..... 221, 260, 266
High voltage components ....... 98
Hybrid System Indicator........ 223
If the hybrid system will not start .................................... 697
Overheating .......................... 709
Plug-in hybrid system precautions ........................... 98
Plug-in hybrid vehicle driving tips ...................................... 105
Power switch......................... 336
Regenerative braking.............. 94
Starting the hybrid system .... 336
Vehicle proximity notification
system ......... ......................... 93
Hybrid System Indicator ......... 223
Hybrid transmission ................ 342 I/M test ...................................... 581
Identification ............................ 719
Engine .................................. 720
Vehicle .................................. 719
Ignition switch (power
switch).................................... 336 Auto power off function ......... 338
Changing the power switch modes ................................ 338
If your vehicle has to be stopped in an emergency ... 653
Starting the hybrid system .... 336
Illuminated entry system ........ 530
Immobilizer system ................... 83
Indicators ................................. 201
Initialization.............................. 752 Items to initialize ................... 752
Maintenance data ................. 576
Parking Support Brake function............................... 452
Power windows..................... 313
S-APGS (Simple Advanced Parking Guidance
System) .............................. 479
Tire pressure warning system .......... ...................... 604
Inside rear view mirror ............ 308
Instrument cluster light
control .................................... 194
Interior lights ........................... 528
Switch ........................... 529, 530
Wattage ................................ 726
Intuitive parking assist ........... 433I
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.